SparkFun Electronics Commentsurn:uuid:214d0e4e-f1b1-d287-ce26-ac5b4c9f82492016-12-09T20:13:20-07:00SparkFun ElectronicsCustomer #634448 on SEN-00241 - Infrared Emitters and DetectorsCustomer #634448urn:uuid:dbb0c2b4-8abe-e1be-abd2-c3d4e2c1d15b2016-09-02T04:32:00-06:00<p>which resistors do i need to incorporate these components into a 5V circuit ?</p>free-bee on SEN-00241 - Infrared Emitters and Detectorsfree-beeurn:uuid:525b50a8-3181-8af1-31c0-138f7f1096ac2014-12-15T11:41:18-07:00<p>I think I&rsquo;ve only seen like one or two total. I&rsquo;ve not actually tried it, but it shouldn&rsquo;t be <em>that</em> hard (as a proximity sensor). Just set up the detector to drop voltage and use an ADC to test the voltages. You might even be able to get the voltage to fluctuate enough to use a digital input. As for beam breaking, you can at smaller distances with no filtering (two or three inches).</p>PointyOintment on SEN-00241 - Infrared Emitters and DetectorsPointyOintmenturn:uuid:23d2890d-1ffd-960f-ffb0-f407fec21c4f2014-12-13T16:17:41-07:00<p>In case you somehow haven&rsquo;t found them after six years of searching, <a href="https://www.sparkfun.com/products/9088" rel="nofollow" >here you go</a>.</p>PointyOintment on SEN-00241 - Infrared Emitters and DetectorsPointyOintmenturn:uuid:a71599ce-48a9-68d1-702e-1b303a5779872014-12-13T16:14:42-07:00<p><a href="https://www.sparkfun.com/products/241#comment-50d526b5ce395fe654000000" rel="nofollow" >Looks like it.</a></p>PointyOintment on SEN-00241 - Infrared Emitters and DetectorsPointyOintmenturn:uuid:82a7c187-be3a-5976-50e7-a8917f24c0322014-12-13T16:13:17-07:00<p>I would only turn one on at a time. In other words: turn on emitter 1, read sensor 1, turn off emitter 1; turn on emitter 2, read sensor 2, turn off emitter 2; turn on emitter 3, read sensor 3, turn off emitter 3; repeat at high frequency.</p>PointyOintment on SEN-00241 - Infrared Emitters and DetectorsPointyOintmenturn:uuid:53e7e580-5dc1-7381-e16a-49b023b9b7182014-12-13T16:07:48-07:00<p>Why would there be an IR proximity sensor in a VCR? I&rsquo;ve taken several apart and don&rsquo;t remember seeing any.</p>
<p>And have you actually tried it? If so, do they work well with a retroreflector, for break-beam detection (like a garage door safety sensor)?</p>free-bee on SEN-00241 - Infrared Emitters and Detectorsfree-beeurn:uuid:66739a63-57e8-a650-7cdb-ec2b42b5c1bc2014-10-04T20:53:59-06:00<p>I come from the future to say, &ldquo;yes&rdquo;. Really, that is how most IR proximity sensors work (ever take an old VCR apart?).</p>MikeGrusin on SEN-00241 - Infrared Emitters and DetectorsMikeGrusinurn:uuid:85519f45-4aec-adc8-2084-64e589ca53c12014-06-13T16:14:52-06:00<p>They should work, the frequency is in the right region. You&rsquo;ll need to construct something that ensures that the light is bounced through the skin rather than directly from the emitter to the detector.</p>hmmmmm on SEN-00241 - Infrared Emitters and Detectorshmmmmmurn:uuid:f93ddb76-5968-a7c5-2d46-d131171f6d122014-06-13T06:13:51-06:00<p>Has anyone used these for making Infrared Pulse Sensor? They seem more practical then using the larger LEDs in most projects.</p>Alan McKay on SEN-00241 - Infrared Emitters and DetectorsAlan McKayurn:uuid:1acc1abf-c9a1-9c90-085c-bdf1feef6a152014-04-05T15:16:57-06:00<p>Could I use these in this application?</p>
<p>http://www.miscjunk.org/mj/pg_pdt.html</p>
<p>What I&rsquo;m worried about is having 3 of the lined up about 3 inches apart, and pointing at each other over a distance of about 5 to 8 inches. Will they have a tight enough focus not to interfere with each other? Or is this where I should be using different &ldquo;carrier frequencies&rdquo; as mentioned in the video accompanying this?</p>
<p>Note: I&rsquo;m a total beginner with electronics so I&rsquo;m not really up on all the lingo.</p>LED addict on SEN-00241 - Infrared Emitters and DetectorsLED addicturn:uuid:d348fdaa-5ad3-f905-5e5b-6d14c5a940942014-01-27T18:54:27-07:00<p>Could I take the set of these, and turning them both 90 degrees away from the other(so the emitter and the detector are pointed in the same direction instead of at each other) could I get a reading from reflections of nearby objects, like say a hand? I&rsquo;d like to use it as a motion sensor, like what you&rsquo;d see on an automated soap dispenser.</p>Random258 on SEN-00241 - Infrared Emitters and DetectorsRandom258urn:uuid:04770342-4154-5421-1a3d-bf3456c1dd6d2013-10-20T16:44:45-06:00<p>Does anybody know if the detector can demodulate 38khz or not?&hellip;.been looking all around but nothing really came up and i have no clue if it will be able to i know the tsop####etc. can do it but i want to know this particular set since i have a couple</p>Julian4 on SEN-00241 - Infrared Emitters and DetectorsJulian4urn:uuid:ddb78de5-dd89-1225-17cd-2340fa5978822013-09-11T21:07:17-06:00<p>Could you post an example of an amplifier and filter for these? I&rsquo;m very interested to increase the range on these. Thanks!</p>LosNir on SEN-00241 - Infrared Emitters and DetectorsLosNirurn:uuid:521f8857-e5f7-4e63-67c0-28af1fc052bb2013-07-25T10:03:26-06:00<p>Thank&rsquo;s, that is useful. It also shows that the detector reacts practically in an instant.</p>Customer #401627 on SEN-00241 - Infrared Emitters and DetectorsCustomer #401627urn:uuid:54218565-7965-3ac0-b252-fde956fdf7712013-05-03T16:53:07-06:00<p>These things are very effective at capturing remote control outputs. I&rsquo;ve create a program that does that here: https://github.com/atomicpunk/arduino/blob/master/infrared/infrared.ino. The range is only about 5 feet using the IR schematic shown, but it&rsquo;s enough for testing purposes. A circuit with an amplifier and filter should give several more feet.</p>miXania on SEN-00241 - Infrared Emitters and DetectorsmiXaniaurn:uuid:7781f7f3-bfd8-fdde-b3b2-c363337de4b22013-03-15T08:44:08-06:00<p>Does anybody know if these guys will communicate with the black IR emitters and receivers such as ones you could find ona a TV remote and on the TV itself?</p>Joel_Q on SEN-00241 - Infrared Emitters and DetectorsJoel_Qurn:uuid:6d390210-ccdd-acf3-3fb1-9bf6011f39bd2013-01-28T16:47:26-07:00<p>Would the IR Schematic under &ldquo;Applications:&rdquo; for this product require a very consistent power supply or would just using a cheap little 5v regulator be good enough? Would I have to use something like the circuit in Sparkfun&rsquo;s first embedded electronics tutorial?
JoelQ</p>Customer #377220 on SEN-00241 - Infrared Emitters and DetectorsCustomer #377220urn:uuid:2332d1f2-2cd7-46a6-717e-d95d2fc43b972012-12-21T20:19:17-07:00<p>With this pair I was able to successfully decode the power button signal from a Comcast remote control, and create a program that will switch the power of the cable box on and off at pretty much any interval of time that I want (limited by the Arduino). The final setup consists of the emitter and the Comcast receiver box, and it works from across the room.</p>hmmwhatsthisdo on SEN-00241 - Infrared Emitters and Detectorshmmwhatsthisdourn:uuid:fd0a2fd9-7076-96f3-a870-8a82b7b80c8b2012-11-03T23:10:32-06:00<p>Total noob question here.</p>
<p>I&rsquo;m trying to integrate an infrared detector into an Irdroid infrared blaster ( http://www.irdroid.com/ ) and wire it in through the mic loop, which has around 2.2V put through it. I could also wire it in with the Irdroid&rsquo;s battery (6V) and use a transistor to open/close the mic loop.</p>
<p>Would something like this work in a situation like the one stated above?</p>
<p>EDIT: Whoops! didn&rsquo;t realize it needed 5V. I guess the latter option would be the only one that&rsquo;s viable.</p>Berny on SEN-00241 - Infrared Emitters and DetectorsBernyurn:uuid:3f52c681-eab3-5abf-8961-bd7b1b85c6532012-07-04T13:40:14-06:00<p>any idea when these may become available?</p>Munir on SEN-00241 - Infrared Emitters and DetectorsMunirurn:uuid:d990beea-a0c3-b528-28f7-5ce5d699c3972012-06-12T02:26:56-06:00<p>Just tried this, can get around 2 inches of semi-reliable detection =(</p>Customer #132481 on SEN-00241 - Infrared Emitters and DetectorsCustomer #132481urn:uuid:68dce72a-ed39-94ab-090b-0f05bce797622012-02-13T16:03:45-07:00<p>Judging from the rest of the comments, ambient light might be a bit of an issue. I&rsquo;d suggest putting a directional shroud or something around them in order to make it more directional&hellip;</p>Customer #15428 on SEN-00241 - Infrared Emitters and DetectorsCustomer #15428urn:uuid:45f0eaec-0c36-482d-2b71-a6a34ab3cdbf2011-12-22T16:04:00-07:00<p>Datasheet links appear broken. Links take me to a blank page. Can anyone help?</p>Customer #263285 on SEN-00241 - Infrared Emitters and DetectorsCustomer #263285urn:uuid:85a9fed1-e4cb-ebd7-b801-4972c7b7cb732011-11-09T07:21:11-07:00<p>I just received these yesterday and used them to repair the front bumper sensor on my Roomba 500 (560) series robot. I used the link below, thanks so much!</p>
<p>TEST AND REPAIR PROCEDURES:
http://www.schneordesign.com/Avi/irobot/roomba_mod2.htm</p>
<p>Regarding Sparkfun: QUALITY PARTS — FAST SHIPPING — RECOMENDED SUPPLIER.</p>sumit4palz on SEN-00241 - Infrared Emitters and Detectorssumit4palzurn:uuid:70500fa9-e42b-2650-b198-2240a17b55c82011-10-20T21:34:24-06:00<p>Can these two be used for Universal remote? If not then whats the use of them?</p>laltmann on SEN-00241 - Infrared Emitters and Detectorslaltmannurn:uuid:34b5a743-5776-2e7b-1882-53a35893f8392011-09-29T15:23:19-06:00<p>Anyone know which &ldquo;bin&rdquo; these parts come from? The datasheets list pretty different values for radiant intensity and on current for the emitter and detector depending on the bin.</p>wordsandnumbers on SEN-00241 - Infrared Emitters and Detectorswordsandnumbersurn:uuid:9ee1379d-7622-3382-6c31-7055f94a53952011-09-21T01:39:22-06:00<p>Note that the emitter and detector are directional in regards to the small bulb or lens that is on one side of each. I couldn&rsquo;t figure out why the emitter had such a minimal effect on the readings from the detector until I pointed both of the bulbs at each other. The range is actually quite good even with all of the ambient IR from lights in the room. Even at distance of about 6 inches, blocking the emitter makes a significant difference in the detector reading. Hope this information helps.</p>Earlz on SEN-00241 - Infrared Emitters and DetectorsEarlzurn:uuid:2fc00dae-8279-7258-18eb-593f0292b8332011-07-20T19:54:28-06:00<p>Note that the white LEDs I used are extremely bright(I can&rsquo;t stare into them) and pointed directly at the detector about an inch away. I haven&rsquo;t encountered problems with common household ambient light, except for direct sunlight.</p>Earlz on SEN-00241 - Infrared Emitters and DetectorsEarlzurn:uuid:48ce12b0-2b5f-aedd-8e2b-2145f2decf052011-07-20T19:52:38-06:00<p>A bit of an update. It appears that the detector is at least a bit sensitive to ambient light that isn&rsquo;t infrared. Shining white LEDs at it causes a very noticeable change in reading. But, I&rsquo;ve found a way around it. A regular piece of exposed 35mm film in front of the detector. I put 2 layers of 35mm film in front and for a distance of only about an inch from the emitter, the detector will yield values of 0.02 when the emitter is off, and 0.7 when the emitter is on. With a set of super bright white LEDs shining at the detector, then the values will be 0.3 with the emitter off, and 0.9 with the emitter on.<br/>
So if you are having problems with a lot of ambient light staring straight at the emitter, you might try just putting a few layers of 35mm film in front of it. In my case, without the 35mm film with the white LEDs pointed at the detector, I got readings of 0.94 with the emitter off and 0.95 with the emitter on.. so this little trick could definitely save a project if you&rsquo;re having this kind of problem</p>dcormier on SEN-00241 - Infrared Emitters and Detectorsdcormierurn:uuid:88b0b435-f564-c8a0-22d3-a7498f976a7f2011-05-07T11:00:50-06:00<p>In case anyone is curious, here&rsquo;s what <a href="http://i.imgur.com/GWAdG.png" rel="nofollow" >the response</a> on the detector looks like. Channel 1 (the higher line) is the detector, and the other line (channel 2) is the emitter. Each horizontal line marks 1 volt and each vertical line marks 50 microseconds. So, it takes the detector about 250 microseconds to get from about 5 volts to 0 once the emitter is turned off.</p>IllogicGate on SEN-00241 - Infrared Emitters and DetectorsIllogicGateurn:uuid:5a9fe0c8-a571-a20c-f511-c39abb8a3d1b2011-04-23T19:18:03-06:00<p>I was able to test a TiVo remote using my grandpa&rsquo;s iSight, and other webcams probably work too.</p>PyroPenguin on SEN-00241 - Infrared Emitters and DetectorsPyroPenguinurn:uuid:7238699e-0a90-c8f3-4193-f0feff84d7102011-04-05T22:27:25-06:00<p>Fixed my Roomba&rsquo;s bump sensors with these guys! See http://www.schneordesign.com/Avi/irobot/roomba_mod2.htm. Works great!</p>Earlz on SEN-00241 - Infrared Emitters and DetectorsEarlzurn:uuid:dbe55a64-6db8-59a4-c1dd-017e446f236f2011-03-27T11:54:05-06:00<p>To all the people complaining ambient light messes with the detector&rsquo;s reading. This is not possible to prevent. Take a camera that sees infrared and a piece of 35mm fully exposed camera film. Put the film over the camera lense and you&rsquo;ll see almost nothing but infrared.<br/>
The main ambient light sources that put out a bunch of infrared for me, are the incandescent light bulbs in my house. I get readings of about 0.8 when my desk light is on compared to 0.1 when it&rsquo;s off. LCD screens do not appear to give off hardly any infrared. I would bet that fluorescent lights don&rsquo;t give off any infrared either. Sunlight of course, is an infrared spot light. There is nothing sparkfun(or physics) can do to make the perfect detector that only sees your little emitter. The only thing you can do is use coding to differentiate your emitter from all the noise.<br/>
Also, I&rsquo;ve confirmed that for the most part, this is only sensitive to infrared light. If you stick a non-infrared LED pointing at the detector, the readings don&rsquo;t change.<br/>
Also, one last thing: I found http://www.societyofrobots.com/schematics_photoresistor.shtml to be a much better tutorial for using photoresistors(ie, the detector) than the linked web pages.</p>Customer #150836 on SEN-00241 - Infrared Emitters and DetectorsCustomer #150836urn:uuid:836c2de5-9d81-742e-6e22-0f0dd4a8861f2011-02-16T16:25:18-07:00<p>The shipment I just received had the detectors marked with a red dot and the emitters marked with a yellow dot. This should probably be noted somewhere.</p>dcormier on SEN-00241 - Infrared Emitters and Detectorsdcormierurn:uuid:a3708375-44d8-58a2-2927-97ed695c978a2011-01-13T18:43:11-07:00<p>I would imagine that this trick would work best with a more inexpensive camera (a camera on a cell phone, for example), as SLR&rsquo;s generally have an IR filter (some stronger than others).</p>sdcharle on SEN-00241 - Infrared Emitters and Detectorssdcharleurn:uuid:1c56d1d7-92e9-63b0-299c-d9a3ac3e4eeb2011-01-11T09:52:28-07:00<p>There&rsquo;s always the trick of looking at it with a digital camera. IR light shows up on a digital camera.</p>dcormier on SEN-00241 - Infrared Emitters and Detectorsdcormierurn:uuid:2fd8a0bd-08eb-831d-01e7-176bdc110ab82010-12-29T23:11:57-07:00<p>I had the same issue. If you have a multimeter with a diode test mode, use that. You should only be able to get a reading when oriented correctly on the detector (the phototransistor). The positive probe goes on the collector (longer lead). Worked great for me. Make sure you&rsquo;re not in too dim of a room when you do this.</p>fluidic on SEN-00241 - Infrared Emitters and Detectorsfluidicurn:uuid:2c312176-ebc8-37f9-c724-6582408acb4d2010-11-15T19:50:03-07:00<p>Well bugger. The emitter and detector look exactly the same to me&hellip;I don&rsquo;t see any of this &ldquo;tinted pink&rdquo; thing.</p>fluidic on SEN-00241 - Infrared Emitters and Detectorsfluidicurn:uuid:65831c5d-d92c-b226-b3fc-f07b52d00f532010-11-05T22:42:22-06:00<p>Just by way of avoiding confusion, it might be cool if items sold as a pair didn&rsquo;t picture a pair of pairs.</p>Arbot on SEN-00241 - Infrared Emitters and DetectorsArboturn:uuid:bef98d1a-2ed0-662b-b6b4-469cbdc4253e2010-10-18T20:33:01-06:00<p>When the detector is setup with a voltage divider (10k resistor and 5V), it reads about 2.0V. When I block a fairly large light coming from the next room with my hand, it drops to about 1.75 volts. So ambient light is an issue.</p>parth on SEN-00241 - Infrared Emitters and Detectorsparthurn:uuid:af46611f-016c-b06b-f68b-923afcf575f02010-10-01T23:43:47-06:00<p>i wanted to know, if someone has used this sensors, whether these sensors are sensitive to ambient light???????????<br/>
waiting for reply..</p>superbrad on SEN-00241 - Infrared Emitters and Detectorssuperbradurn:uuid:d83dc853-2fdf-6ebf-eb7b-a99ab6d9204f2010-04-17T16:42:50-06:00<p>I&rsquo;m able to see a noticeable difference in XMega ADC readings (12 bit) across dark/light color differences from a flat surface about one inch away. I think there&rsquo;s even some room for improvement with oversampling.<br/>
Though not as handy as the QRD/QRE sensors, the IR transmitter&rsquo;s max forward current is 50mA, twice that of the QRE1113. That extra power translates into extra range. You&rsquo;ll need to test for your own requirements if these will work though - standard YMMV disclaimer applies.</p>ThinkerT on SEN-00241 - Infrared Emitters and DetectorsThinkerTurn:uuid:b76e514f-49ae-6136-ab7b-1272cda9f0f92010-02-10T13:45:52-07:00<p>How far is the range on these? Could you sense something across the room?</p>ChiefRobot on SEN-00241 - Infrared Emitters and DetectorsChiefRoboturn:uuid:158de3fe-de0d-1c38-9771-ec29f58efec32010-01-31T19:54:09-07:00<p>JerrA&rsquo;s code is a good place to start, but has any used 2 sets of these to monitor a doorway. I went to know when someone enters or leaves a room.</p>derekmoore on SEN-00241 - Infrared Emitters and Detectorsderekmooreurn:uuid:ea688c1a-c3a0-16db-a395-5e445d32ae462009-11-27T13:55:13-07:00<p>I ordered this pair and received 2 emitters and no detector. Who do I contact about this?</p>EvilTwin on SEN-00241 - Infrared Emitters and DetectorsEvilTwinurn:uuid:3df4d51f-6355-0ac1-2ed3-81e4ac30efdd2009-11-19T21:45:25-07:00<p>What are the odds I can point the detector at a peice of white letter size paper, then point a 940nm laser diode at the paper from a distance and trigger the detector?</p>JerryA on SEN-00241 - Infrared Emitters and DetectorsJerryAurn:uuid:68cf0f4a-e8d1-4233-b993-90751a8a3c812009-02-06T15:53:15-07:00<p>I wrote about using these to test a camera shutter at the Arduino forum here:<br/>
<a href="http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1233960430/" rel="nofollow" >http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1233960430/</a><br/>
These couldn&rsquo;t have been easier to use.</p>bearsinthesea on SEN-00241 - Infrared Emitters and Detectorsbearsintheseaurn:uuid:1f622f1c-83c9-e446-89fd-da1b9177ef7b2008-11-03T11:56:31-07:00<p>Where are the plain photoresistors?</p>lualua on SEN-00241 - Infrared Emitters and Detectorslualuaurn:uuid:1c0f78a5-33f0-ff41-026c-e38f167da38f2008-10-02T12:11:04-06:00<p>what sort of range for detection do we stand to get with this package?</p>